A Study On The Least Squares Reduced Parameter Approximation Of Fir Digital Filters

S. Seyedtabaii, E. Seyedtabaii
2008 Zenodo  
Rounding of coefficients is a common practice in hardware implementation of digital filters. Where some coefficients are very close to zero or one, as assumed in this paper, this rounding action also leads to some computation reduction. Furthermore, if the discarded coefficient is of high order, a reduced order filter is obtained, otherwise the order does not change but computation is reduced. In this paper, the Least Squares approximation to rounded (or discarded) coefficient FIR filter is
more » ... t FIR filter is investigated. The result also succinctly extended to general type of FIR filters.
doi:10.5281/zenodo.1084201 fatcat:y7pldjfvqbcjdehhp3s3zxyfqa